Saddle and post clamp.



11. H. SMITH. SADDLE AND POSfI CLAMP. APPLIGATION FILED JUNE 9, 1910.

Patented Aug. 8, 1911.

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HARRY H. SMITH, OF JOPLIN, MISSOURI.

SADDLE AND POST CLAMP.

Specification of Letters Patent.

Patented Aug. 8, 1911.

Application filed June 9, 1910. Serial No. 566,114..

To all whom 'it may concern:

Be it known that I, HARRY H. SMITH, a citizen of the United States,residing at Joplin, county of Jasper, and State of Missouri, haveinvented a new and useful Improvement in Saddle and Post Clamps, ofwhich the following is a specification.

The invention has for its object to provide not only a reliable meansfor carrying the drill and for accommodating the type now in use, butalso to provide for the adjust-ment or shifting of the same to variousangles according to the position it may be required to cause the saddleor drill to assume; also to provide for carrying out these sundryobjects in a simple, expeditious and effective manner. J

The invention to these ends consists of certain instrumentalities orfeatures substantially as hereinafter fully disclosed and defined by theclaim.

In the accompanying drawing illustrating the preferred embodiment of myinvention:Figure 1 is a side elevation of the same. Fig. 2 is a verticalsection produced through Fig. 1 on the line 2-2. Fig. 3 is a likesection taken through Fig. 4 on the line 33. Fig. 4 is a plan view ofthe invention. Fig. 5 is an end view of Fig. 4. Fig. 6 is a view of thedevice taken at right angles to Fig. 5. Fig. 7 is an end view of amodification of the invention for the adaptation or attachment of thesame to what may be termed a post or arm. Fig. 8 is a side view of themodification shown in Fig. 7

In practicing my invention, I provide the drill carriage a with acentral pendent extension having a ball like or spherical terminal Z) atits lower end, received by an upwardly cupped ball socket 6 formed in asocketed member or casting a and a clamp member d. The member 0 has aplane, ver tical surface 0, whichterminates in a shoulder c and on thisshoulder rests the clamp member (Z. A bolt f, is carried by the socketmember, and extends obliquely through said plane surface and throughsaid clamp member. A nut f, on said bolt 1s adapted for tightening theclamp member against the ball and against the shoulder 0 This latterfeature is an important one; for unless the clamp member is held inrigid relation with the socket member, the ball is liable to be unstablein the socket and cause unnecessary friction, and possible breakage ofthe drill, and besides, requiring greater power to operate the drill. Toprovide for this rigid relation, the bolt is inclined to the plane ofthe surface 0, so that when the nut f is tightened, it simultaneouslytightens the member cl against the ball and against the shoulder, sothat all the parts are rigidly secured together. When it is desired tochange the position of the drill, the nut 7 may be loosened and the ballshifted in the socket to the desired position.

The clamp 65 together with its retaining nut-equipped bolt f, providesfor the ready and expeditious shifting or adjustment of the ballterminated extension I) of the drill carriage according to the angle ofadjustment it may be desired to impart to the drill-carriage as will bereadily understood; also by this arrangement the saddle-carriage may berotated as upon an axis as may be desired. The passage 9 of the casting0 receives a lock-bolt, not shown, of any desired form of tripod forsuitably supporting the drill-carriage together with adjunctive parts.

As suggested by Figs. 7 and 8, the device may be adapted for attachmentto a post or arm, the casting or member 0, in that event, being providedwith a clamp to receive said arm or post, having a downwardly cuppedsemi-cylindrical aperture h therein, and having a lower member h securedthereto, by means of bolts 2'. The lower clamping member is formed witha semi-cylindrical aperture k which coincides with the aperture h andcooperates therewith for clamping onto a shaft or the like.

The device as above described is also adapted to provide for sodisposing the drill-carriage as to effect the boring or drillingoperation with accuracy and precision,

as is apparent by reason of the nicety of adjustment of which it issusceptible.

I claim v In a clamping device, a socketed member comprising an upwardlycupped ball socket and a downwardly cupped semi-cylindrical aperture anda substantially vertical plane surface having a shoulder thereon andhaving a bolt extending obliquely upward therefrom, a ball seated in thesocket and carrying a drill carriage, an upper clamp member seated onthe shoulder and adapted to clamping member and having a nutthereon forsecuring the latter in firm contact with the ball and with the shoulder.

HARRY H. SMITH.

Witnesses J. O. JOHNSON, S. H. STEPHENS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

